Tactic: Adaptive Sparse Attention with Clustering and Distribution Fitting for Long-Context LLMs - Zhu, Kan; Tang, Tian; Xu, Qinyu; Jin, Zhan; Gu, Yile; Zeng, Zhichen; Kadekodi, Rohan; Zhao, Liangyu; Li, Ang; Krishnamurthy, Arvind; Kasikci, Baris (International Conference on Learning Representations, 2026)